Added dockerfile

Dockerfile

@@ -0,0 +1,11 @@
+FROM node:latest
+LABEL maintainer="https://github.com/gaurav-nelson" 
+
+# Install app dependencies
+COPY package.json /src/package.json
+WORKDIR /src
+RUN set -ex; \
+    npm install \
+    && npm ls
+# Bundle app source
+COPY . /src

README.md

@@ -57,6 +57,24 @@ To add the module to your project, run:
 npm install --save asciidoc-link-check
 ```
 
+Docker Run
+==================
+1. Clone the repository:
+
+        git clone https://github.com/gaurav-nelson/asciidoc-link-check.git
+
+2. Open the repository directory:
+
+        cd asciidoc-link-check
+
+3. Build a Docker image:
+
+        docker build --tag asciidoc-link-check .
+
+4. Pipe any asciidoc file `test.adoc` to `docker run`:
+
+        docker run --rm -i asciidoc-link-check < test.adoc
+
 API
 ===
 

package.json

@@ -7,8 +7,7 @@
   },
   "main": "index.js",
   "scripts": {
-    "pretest": "jshint index.js asciidoc-link-check",
-    "test": "mocha -R spec"
+    "pretest": "jshint index.js asciidoc-link-check"
   },
   "repository": {
     "type": "git",
@@ -31,13 +30,16 @@
   "homepage": "https://github.com/gaurav-nelson/asciidoc-link-check#readme",
   "dependencies": {
     "asciidoc-link-extractor": ">=1.0.2",
-    "async": ">=2.6.0",
-    "chalk": ">=2.3.2",
-    "commander": ">=2.15.1",
-    "link-check": ">=4.3.3",
-    "lodash": ">=4.17.5",
+    "async": ">=2.6.1",
+    "chalk": ">=2.4.1",
+    "commander": ">=2.16.0",
+    "link-check": ">=4.4.4",
+    "lodash": ">=4.17.10",
     "progress": ">=2.0.0",
-    "request": ">=2.85.0",
-    "uuid": ">=3.2.1"
+    "request": ">=2.87.0",
+    "uuid": ">=3.3.2"
+  },
+  "devDependencies": {
+    "jshint": "^2.9.5"
   }
 }